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<a href="line3d_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (C) 2002-2012 Nikolaus Gebhardt</span>
<a name="l00002"></a>00002 <span class="comment">// This file is part of the &quot;Irrlicht Engine&quot;.</span>
<a name="l00003"></a>00003 <span class="comment">// For conditions of distribution and use, see copyright notice in irrlicht.h</span>
<a name="l00004"></a>00004 
<a name="l00005"></a>00005 <span class="preprocessor">#ifndef __IRR_LINE_3D_H_INCLUDED__</span>
<a name="l00006"></a>00006 <span class="preprocessor"></span><span class="preprocessor">#define __IRR_LINE_3D_H_INCLUDED__</span>
<a name="l00007"></a>00007 <span class="preprocessor"></span>
<a name="l00008"></a>00008 <span class="preprocessor">#include &quot;<a class="code" href="irr_types_8h.html">irrTypes.h</a>&quot;</span>
<a name="l00009"></a>00009 <span class="preprocessor">#include &quot;<a class="code" href="vector3d_8h.html">vector3d.h</a>&quot;</span>
<a name="l00010"></a>00010 
<a name="l00011"></a>00011 <span class="keyword">namespace </span>irr
<a name="l00012"></a>00012 {
<a name="l00013"></a>00013 <span class="keyword">namespace </span>core
<a name="l00014"></a>00014 {
<a name="l00015"></a>00015 
<a name="l00017"></a>00017 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
<a name="l00018"></a><a class="code" href="classirr_1_1core_1_1line3d.html">00018</a> <span class="keyword">class </span><a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d</a>
<a name="l00019"></a>00019 {
<a name="l00020"></a>00020     <span class="keyword">public</span>:
<a name="l00021"></a>00021 
<a name="l00023"></a>00023 
<a name="l00024"></a><a class="code" href="classirr_1_1core_1_1line3d.html#ab88640572a102a9eebd1bf483b7d7e75">00024</a>         <a class="code" href="classirr_1_1core_1_1line3d.html#ab88640572a102a9eebd1bf483b7d7e75" title="Default constructor.">line3d</a>() : <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>(0,0,0), <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>(1,1,1) {}
<a name="l00026"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a19bc6c5661d8913ac6911b2513f7804f">00026</a>         <a class="code" href="classirr_1_1core_1_1line3d.html#a19bc6c5661d8913ac6911b2513f7804f" title="Constructor with two points.">line3d</a>(T xa, T ya, T za, T xb, T yb, T zb) : <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>(xa, ya, za), <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>(xb, yb, zb) {}
<a name="l00028"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a9f77afda569d38afe68c9c3db39037f4">00028</a>         <a class="code" href="classirr_1_1core_1_1line3d.html#a9f77afda569d38afe68c9c3db39037f4" title="Constructor with two points as vectors.">line3d</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>, <span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>) : start(start), end(end) {}
<a name="l00029"></a>00029 
<a name="l00030"></a>00030         <span class="comment">// operators</span>
<a name="l00031"></a>00031 
<a name="l00032"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a1a83fbe4b2ac9a0e0127bc379bfcfa0a">00032</a>         <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a> <a class="code" href="classirr_1_1core_1_1line3d.html#a1a83fbe4b2ac9a0e0127bc379bfcfa0a">operator+</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; point)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a>(<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> + point, <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a> + point); }
<a name="l00033"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a087964aee6bc9250364a2419c4fd8bcd">00033</a>         <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a>&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#a087964aee6bc9250364a2419c4fd8bcd">operator+=</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; point) { <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> += point; <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a> += point; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }
<a name="l00034"></a>00034 
<a name="l00035"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a3b068104309f8eb6ed8ae3f8ad9c0536">00035</a>         <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a> <a class="code" href="classirr_1_1core_1_1line3d.html#a3b068104309f8eb6ed8ae3f8ad9c0536">operator-</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; point)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a>(<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> - point, <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a> - point); }
<a name="l00036"></a><a class="code" href="classirr_1_1core_1_1line3d.html#aef9ba9ecbfac940e2d221f67015774ce">00036</a>         <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a>&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#aef9ba9ecbfac940e2d221f67015774ce">operator-=</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; point) { <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> -= point; <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a> -= point; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }
<a name="l00037"></a>00037 
<a name="l00038"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a4d0d98986e6bffdf0bb943e103707c65">00038</a>         <span class="keywordtype">bool</span> <a class="code" href="classirr_1_1core_1_1line3d.html#a4d0d98986e6bffdf0bb943e103707c65">operator==</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a>&amp; other)<span class="keyword"> const</span>
<a name="l00039"></a>00039 <span class="keyword">        </span>{ <span class="keywordflow">return</span> (<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> &amp;&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>) || (<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> &amp;&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>);}
<a name="l00040"></a><a class="code" href="classirr_1_1core_1_1line3d.html#ad73e0c54bfaded49c81b618c6caf3284">00040</a>         <span class="keywordtype">bool</span> <a class="code" href="classirr_1_1core_1_1line3d.html#ad73e0c54bfaded49c81b618c6caf3284">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a>&amp; other)<span class="keyword"> const</span>
<a name="l00041"></a>00041 <span class="keyword">        </span>{ <span class="keywordflow">return</span> !(<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> &amp;&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>) || (<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> &amp;&amp; <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>==other.<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>);}
<a name="l00042"></a>00042 
<a name="l00043"></a>00043         <span class="comment">// functions</span>
<a name="l00045"></a><a class="code" href="classirr_1_1core_1_1line3d.html#aa691426799bff0ccf37bc09f56b8fa59">00045</a> <span class="comment"></span>        <span class="keywordtype">void</span> <a class="code" href="classirr_1_1core_1_1line3d.html#aa691426799bff0ccf37bc09f56b8fa59" title="Set this line to a new line going through the two points.">setLine</a>(<span class="keyword">const</span> T&amp; xa, <span class="keyword">const</span> T&amp; ya, <span class="keyword">const</span> T&amp; za, <span class="keyword">const</span> T&amp; xb, <span class="keyword">const</span> T&amp; yb, <span class="keyword">const</span> T&amp; zb)
<a name="l00046"></a>00046         {<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>.set(xa, ya, za); <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>.set(xb, yb, zb);}
<a name="l00048"></a><a class="code" href="classirr_1_1core_1_1line3d.html#af66862d06acc114567e1e0cfaa23f429">00048</a>         <span class="keywordtype">void</span> <a class="code" href="classirr_1_1core_1_1line3d.html#aa691426799bff0ccf37bc09f56b8fa59" title="Set this line to a new line going through the two points.">setLine</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; nstart, <span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; nend)
<a name="l00049"></a>00049         {<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>.set(nstart); <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>.set(nend);}
<a name="l00051"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a75d2a9f34ca66c2a1399f8b9fe0fa760">00051</a>         <span class="keywordtype">void</span> <a class="code" href="classirr_1_1core_1_1line3d.html#aa691426799bff0ccf37bc09f56b8fa59" title="Set this line to a new line going through the two points.">setLine</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;T&gt;</a>&amp; line)
<a name="l00052"></a>00052         {<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>.set(line.<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>); <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>.set(line.<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>);}
<a name="l00053"></a>00053 
<a name="l00055"></a>00055 
<a name="l00056"></a><a class="code" href="classirr_1_1core_1_1line3d.html#abbcbf8958f99c0204c54024322c07a03">00056</a>         T <a class="code" href="classirr_1_1core_1_1line3d.html#abbcbf8958f99c0204c54024322c07a03" title="Get length of line.">getLength</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>.getDistanceFrom(<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>); }
<a name="l00057"></a>00057 
<a name="l00059"></a>00059 
<a name="l00060"></a><a class="code" href="classirr_1_1core_1_1line3d.html#ab5f46ffef60794e9755fc33fdc3a0408">00060</a>         T <a class="code" href="classirr_1_1core_1_1line3d.html#ab5f46ffef60794e9755fc33fdc3a0408" title="Get squared length of line.">getLengthSQ</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>.getDistanceFromSQ(<a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>); }
<a name="l00061"></a>00061 
<a name="l00063"></a>00063 
<a name="l00064"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a2d4f769eb73ef41e3223dc0b2713a759">00064</a>         <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> <a class="code" href="classirr_1_1core_1_1line3d.html#a2d4f769eb73ef41e3223dc0b2713a759" title="Get middle of line.">getMiddle</a>()<span class="keyword"> const</span>
<a name="l00065"></a>00065 <span class="keyword">        </span>{
<a name="l00066"></a>00066             <span class="keywordflow">return</span> (<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a> + <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>)/(T)2;
<a name="l00067"></a>00067         }
<a name="l00068"></a>00068 
<a name="l00070"></a>00070 
<a name="l00071"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a1394b59b713cec4044259d1999bbcc80">00071</a>         <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> <a class="code" href="classirr_1_1core_1_1line3d.html#a1394b59b713cec4044259d1999bbcc80" title="Get vector of line.">getVector</a>()<span class="keyword"> const</span>
<a name="l00072"></a>00072 <span class="keyword">        </span>{
<a name="l00073"></a>00073             <span class="keywordflow">return</span> <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a> - <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>;
<a name="l00074"></a>00074         }
<a name="l00075"></a>00075 
<a name="l00077"></a>00077 
<a name="l00081"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a1f51d4736b808a665697fba776818239">00081</a>         <span class="keywordtype">bool</span> <a class="code" href="classirr_1_1core_1_1line3d.html#a1f51d4736b808a665697fba776818239" title="Check if the given point is between start and end of the line.">isPointBetweenStartAndEnd</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; point)<span class="keyword"> const</span>
<a name="l00082"></a>00082 <span class="keyword">        </span>{
<a name="l00083"></a>00083             <span class="keywordflow">return</span> point.<a class="code" href="classirr_1_1core_1_1vector3d.html#ace05ee3b68b47c2ec6baff0d9d64de98" title="Returns if this vector interpreted as a point is on a line between two other points.">isBetweenPoints</a>(<a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>, <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>);
<a name="l00084"></a>00084         }
<a name="l00085"></a>00085 
<a name="l00087"></a>00087 
<a name="l00089"></a><a class="code" href="classirr_1_1core_1_1line3d.html#afae16456838c8e8f88f71fe1480967e8">00089</a>         <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> <a class="code" href="classirr_1_1core_1_1line3d.html#afae16456838c8e8f88f71fe1480967e8" title="Get the closest point on this line to a point.">getClosestPoint</a>(<span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a>&amp; point)<span class="keyword"> const</span>
<a name="l00090"></a>00090 <span class="keyword">        </span>{
<a name="l00091"></a>00091             <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> c = point - <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>;
<a name="l00092"></a>00092             <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> v = <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a> - <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>;
<a name="l00093"></a>00093             T d = (T)v.<a class="code" href="classirr_1_1core_1_1vector3d.html#ab0f95138bd31d82b5486237c8e49a2d5" title="Get length of the vector.">getLength</a>();
<a name="l00094"></a>00094             v /= d;
<a name="l00095"></a>00095             T t = v.<a class="code" href="classirr_1_1core_1_1vector3d.html#a0b247d39047c0e51ff16d0118bb396ab" title="Get the dot product with another vector.">dotProduct</a>(c);
<a name="l00096"></a>00096 
<a name="l00097"></a>00097             <span class="keywordflow">if</span> (t &lt; (T)0.0)
<a name="l00098"></a>00098                 <span class="keywordflow">return</span> <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>;
<a name="l00099"></a>00099             <span class="keywordflow">if</span> (t &gt; d)
<a name="l00100"></a>00100                 <span class="keywordflow">return</span> <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>;
<a name="l00101"></a>00101 
<a name="l00102"></a>00102             v *= t;
<a name="l00103"></a>00103             <span class="keywordflow">return</span> start + v;
<a name="l00104"></a>00104         }
<a name="l00105"></a>00105 
<a name="l00107"></a>00107 
<a name="l00113"></a><a class="code" href="classirr_1_1core_1_1line3d.html#aaa4419864f37980fc38ae6b618bb0133">00113</a>         <span class="keywordtype">bool</span> <a class="code" href="classirr_1_1core_1_1line3d.html#aaa4419864f37980fc38ae6b618bb0133" title="Check if the line intersects with a shpere.">getIntersectionWithSphere</a>(<a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> sorigin, T sradius, <a class="code" href="namespaceirr.html#a1325b02603ad449f92c68fc640af9b28" title="64 bit floating point variable.">f64</a>&amp; outdistance)<span class="keyword"> const</span>
<a name="l00114"></a>00114 <span class="keyword">        </span>{
<a name="l00115"></a>00115             <span class="keyword">const</span> <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> q = sorigin - <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>;
<a name="l00116"></a>00116             T c = q.<a class="code" href="classirr_1_1core_1_1vector3d.html#ab0f95138bd31d82b5486237c8e49a2d5" title="Get length of the vector.">getLength</a>();
<a name="l00117"></a>00117             T v = q.<a class="code" href="classirr_1_1core_1_1vector3d.html#a0b247d39047c0e51ff16d0118bb396ab" title="Get the dot product with another vector.">dotProduct</a>(<a class="code" href="classirr_1_1core_1_1line3d.html#a1394b59b713cec4044259d1999bbcc80" title="Get vector of line.">getVector</a>().normalize());
<a name="l00118"></a>00118             T d = sradius * sradius - (c*c - v*v);
<a name="l00119"></a>00119 
<a name="l00120"></a>00120             <span class="keywordflow">if</span> (d &lt; 0.0)
<a name="l00121"></a>00121                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00122"></a>00122 
<a name="l00123"></a>00123             outdistance = v - <a class="code" href="namespaceirr_1_1core.html#af2f378cc34a19f5da6fe1d4961646d1d">core::squareroot</a> ( d );
<a name="l00124"></a>00124             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00125"></a>00125         }
<a name="l00126"></a>00126 
<a name="l00127"></a>00127         <span class="comment">// member variables</span>
<a name="l00128"></a>00128 
<a name="l00130"></a><a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251">00130</a>         <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> <a class="code" href="classirr_1_1core_1_1line3d.html#a8874f77324b6ef6632e66b22051a3251" title="Start point of line.">start</a>;
<a name="l00132"></a><a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0">00132</a>         <a class="code" href="classirr_1_1core_1_1vector3d.html" title="3d vector template class with lots of operators and methods.">vector3d&lt;T&gt;</a> <a class="code" href="classirr_1_1core_1_1line3d.html#aea19cb33971bb20e1d736facdae8a8f0" title="End point of line.">end</a>;
<a name="l00133"></a>00133 };
<a name="l00134"></a>00134 
<a name="l00136"></a><a class="code" href="namespaceirr_1_1core.html#a384a3bb17659466af5521c7f74cfcea7">00136</a>     <span class="keyword">typedef</span> <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;f32&gt;</a> <a class="code" href="namespaceirr_1_1core.html#a384a3bb17659466af5521c7f74cfcea7" title="Typedef for an f32 line.">line3df</a>;
<a name="l00138"></a><a class="code" href="namespaceirr_1_1core.html#ad57386c25ccca6be3db210168ae3d00c">00138</a>     <span class="keyword">typedef</span> <a class="code" href="classirr_1_1core_1_1line3d.html" title="3D line between two points with intersection methods.">line3d&lt;s32&gt;</a> <a class="code" href="namespaceirr_1_1core.html#ad57386c25ccca6be3db210168ae3d00c" title="Typedef for an integer line.">line3di</a>;
<a name="l00139"></a>00139 
<a name="l00140"></a>00140 } <span class="comment">// end namespace core</span>
<a name="l00141"></a>00141 } <span class="comment">// end namespace irr</span>
<a name="l00142"></a>00142 
<a name="l00143"></a>00143 <span class="preprocessor">#endif</span>
<a name="l00144"></a>00144 <span class="preprocessor"></span>
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